Device for atomising for air way disinfection, comprising: an ultrasound probe (1) comprising a transducer (2) and a sonotrode (3) configured to transmit the vibrations from the transducer (2) to a particle ejection surface (30), the sonotrode (3) comprising an intake channel (31) of the product to be sprayed towards the ejection surface (30), an aeraulic system configured to create a flow of air for driving particles sprayed by the ultrasonic probe, comprising a nozzle (5) that channels the flow of air to an air outlet (S), According to the invention, the ultrasonic probe (1) is arranged on the outlet (S) in such a way as to position in the flow of air for driving the ejection surface (30) and a portion of the length of the sonotrode (3) starting from said ejection surface (30) while a portion of the body of the ultrasonic probe protrudes radially exteriorly beyond the diameter of the orifice of the outlet of the nozzle (5) and in such a way as to not be subjected to said flow of air for driving.一種用於空氣消毒的霧化裝置,包含一超聲波探頭、一氣體動力系統,超聲波探頭包含一轉換器和一超聲波發生器,超聲波發生器被配置為從轉換器傳遞振動到一噴出表面,超聲波發生器包含朝向噴出表面噴射產品的一引水渠;配置氣體動力系統以產生用於驅動由超聲波探頭噴射的顆粒的氣流,系統包含將氣流引導到一氣體出口的一噴嘴。超聲波探頭設置在氣體出口上,並位於用來驅動噴出表面的氣流上,其中超聲波發生器的一部分從噴出表面突出,超聲波探頭的本體的一部分徑向地超過噴嘴的氣體出口的直徑,而且不受到用於驅動之氣流之影響。